Could you please give me some facts on the steel tunnel liner in the Cat Arm Hydro Project?

1. What is the length of steel tunnel liner?
2. What is the plate thickness of the steel?
3. What is the grade of steel?
4. Is there concrete lining upstream from the steel lined section?
5. What is the length and diameter of the unlined tunnel?
6. Is the surge shaft lined? If so with what?